At least one of my stocks is doing pretty well in this terrible, depressing market environment. Activision (NASDAQ: ATVI) hit a new 52-week high of $36.84 on Tuesday. It closed a little below that, but it was a great, high-volume day for the stock, one that saw the shares rise almost 5%.

Yes, with the Dow Jones index shedding 100 points, with every other stock in my portfolio in the red, including MFA (NYSE: MFA), which closed down to $6.66 -- the number of the beast, my friends -- Activision not only held its own, but it powered higher. Perhaps it's due to the new Guitar Hero game coming out for the DS. Perhaps there's a new wave of excitement over the merger now that investors are receiving their documents (I just got mine the other day, a big book full of wonderful information about the Activision/Vivendi agreement). No matter, though, it was Activision's day, since competitors Electronic Arts (NASDAQ: ERTS) and Take-Two Interactive (NASDAQ: TTWO) were down Tuesday, and THQ (NASDAQ: THQI) closed up only four measly pennies.

I love this price action, and I think it might be predicting a prosperous Q4 holiday season for the company, which will eventually be called Activision Blizzard after the merger. I'm also hoping the action indicates that the stock will be reasonably stable during the summer, which I think is going to be rough on the markets as oil and inflation headlines dominate the tape.

I'm not a huge fan of Blockbuster (NYSE: BBI), but I do concede that I think the movie renter is on to something with its latest move. According to this brief AP piece, Blockbuster wants to leverage the current video game console cycle to add value for its shareholders. Management intends to increase its presence in this sector by adding more hardware, software and accessories dedicated to consoles from Sony (NYSE: SNE), Microsoft (NASDAQ: MSFT) and Nintendo (OTC: NTDOY) to its locations.

This would be wise. I think all retailers should have a comprehensive and well-defined strategy when it comes to video games -- why let GameStop (NYSE: GME) have all the fun? Blockbuster should really go all out on this form of leisure entertainment and aggressively pursue this potential area of growth. Kids -- and teenagers and adults, for that matter -- love to try before they buy when it comes to game software.

Management has to realize, however, that it's not enough to just expand its video game sections; oh no. Indeed, some heavy branding and promotional initiatives are definitely required to convince consumers that Blockbuster is a go-to place for rental/buying needs related to PlayStation 3, Xbox 360, Wii and the Nintendo DS. I haven't thought of Blockbuster as a place to rent video games for a long time now (I also haven't thought about Blockbuster in general, since there aren't any close to me anymore).

So, yes, Blockbuster should do what it can to hitch onto the hot video game growth curve. This is a much, much better idea than buying Circuit City (NYSE: CC), I can tell you that. (For more on that debacle, check out Zac Bissonnette's recent post on the subject.)

Disclosure: I don't own shares in any of the companies mentioned here; positions can change at any time.

I'd like to own Nintendo (OTC: NTDOY), but there are a couple things that bother me about the current chapter of its amazing story. First, let me take a look at a report about the video-game juggernaut's earnings.

According to The New York Times, Nintendo's profit number was one for the record books. Sales soared to the sky, rocketing 73% to over $16 billion. Net profit also went ballistic -- in a good way -- by about 48%, coming in at $2.5 billion. Yeah, the Wii console was a big driver, but don't forget that little handheld wonder called the Nintendo DS -- people sometimes miss that part of the tale, and they shouldn't. The DS sold over 30 million units on a global basis during the fiscal year, while the Wii sold over 18 million units. Yep, Sony (NYSE: SNE) and Microsoft (NASDAQ: MSFT) still have something to worry about, as the Wii has taken the shine away from the PlayStation 3 and the Xbox 360. The company's position in the current gaming cycle is strong, no question. And publishers like Activision (NASDAQ: ATVI) and Electronic Arts (NASDAQ: ERTS) all strive to be big supporters of Nintendo's systems.

Here are the problems, though, that I alluded to at the opening. First, as of this writing, the ADR's are, according to AOL Finance, priced at $71.14 (the ADR's don't change during the day on this quote system, as they update after the close; I'm seeing a current bid on my brokerage's quote system of $68.50, so the shares might possibly go lower tonight). This represents something of a recent run-up, so I'm not interested in chasing the stock at these levels (last time I was interested in Nintendo, there was a price drop). But, there could be a more pressing issue -- on an anecdotal level, in my area, the Wii's are currently plentiful. Has the system peaked? Hey, don't go by my anecdotal observations, but I'm just saying that, for me personally, buying Nintendo at this time is something I'd have to consider very, very carefully.

Disclosure: I own shares of Activision; positions can change at any time.

If I had a dime for every time a person asked me "Is Rock Band ever coming out for the Nintendo (OTC: NTDOY) Wii?" I'd have more money than Electronic Arts (NASDAQ: ERTS) and Viacom (NYSE: VIA) combined. Seriously. Now, though, Wii fans can see the light at the end of the tunnel because Rock Band debuts on the popular platform on June 22 of this year. I don't think any gamer on the planet expected the title to not come out for the Wii.

Not only is this great news for Wii users, but it's also excellent information for shareholders of EA and Viacom. As Richard Driver pointed out, the game is a valuable asset for Viacom. EA benefits because Rock Band is the publisher's answer to Activision (NASDAQ: ATVI)'s Guitar Hero franchise. In fact, Nintendo really stands to benefit this summer from both Guitar Hero and Rock Band because a version of the former will be coming out for the Nintendo DS handheld. There's definitely going to be a rock rumble happening when the dog days are upon us, although I'd expect that Rock Band for the Wii will have a much bigger impact. That doesn't seem too hard to predict considering that music games of these types work better on consoles, in my opinion.

This is going to be one hell of a test for Activision, EA, Viacom and the Wii. Will users adopt Rock Band in droves? Will the Guitar Hero franchise be threatened? In theory, the Wii is a console for casual gamers who just like to play some tennis or a few of the extremely fun midway diversions that can be found in the awesome title Carnival Games -- will they go for something more expensive and more involved? My prediction -- Rock Band will be a hit, but it won't sell a ton of units until the holiday shopping season is upon us. Can't wait to see what happens come June. Till then, rock on, my friends!

Disclosure: I own shares of Activision; positions can change at any time.

I used to own some of the Nintendo (OTC: NTDOY) ADRs that trade over-the-counter. I bought them last summer ahead of the holiday season at around $62 a share and sold the position last month for about $67 a share, intent on raising some cash in one of my accounts for better buying opportunities. I should have sold when the shares hit their 52-week high of approximately $78, but I didn't -- kills me, but I've moved on (I think).

But with the recent sharp drop in the shares, should investors be taking a look at Nintendo? I know I've been keeping an eye on the price action. Nintendo is definitely a major player this time around in the console cycle; Sony (NYSE: SNE) used to be king of the gamers, but now the sales/cultural buzz is definitely in the Mario-maker's court. Not only is the Wii a major catalyst, but you have to respect the incredible popularity of the DS handheld system.

My gut is telling me that Nintendo hasn't yet bottomed out. Identifying a bottom is a fool's game, of course, but I'd like to see Nintendo develop a more stable base before I buy in again. For now, I own Activision (NASDAQ: ATVI) and Take-Two (NASDAQ: TTWO) as plays on the videogame growth story, but I am interested yet again in Nintendo.

Disclosure: Steven Mallas owns Activision and Take-Two, and is mulling a purchase in Nintendo.

Last month news came out that Nintendo Co., Ltd (ADR) (OTC: NTDOY) exceeded Sony Corporation (ADR) (NYSE: SNE) in terms of market capitalization, with analysts citing the global popularity of the DS and Wii consoles for the boost.

Nintendo's global popularity comes in part because of its shift in strategy: make game systems and games for everyone. People are buying the Nintendo DS not just to play "Madden NFL" or "Need for Speed", but also to study, keep a budget and even learn languages and speech. The Wall Street Journal discusses today that the Nintendo DS is used to practice English at Otokoyama Higashi Junior High School in Japan.

Adults took interest in the DS when Nintendo released Brain Age, a quiz game designed to stimulate minds with daily quizzes to test reflexes, speed-arithmetic and memorization skills. Afterwards, an English dictation game that improved spelling and listening created the demand for a new type of DS software.