Here is the latest weekly update for you folks either on Nintendo 3Ds or Nintendo Wii. Click on the link to be forwarded to each titles profile page on Nintendo.com.

Nintendo eShop 
Blaster Master: Enemy Below - Using the strong weapons and high jumping power of his legendary battle vehicle, Jason must explore a subterranean region where a sinister life form resides. (For Nintendo 3DS™)

Nintendo eShop / Nintendo DSiWare™
Elite Forces: Unit 77 - Drive armored trucks and tanks, defuse mines, locate explosives and rescue hostages. Gather your forces into a crack squad or control a single game character based on the strategic requirements. (For Nintendo 3DS /Nintendo DSi™)

Check out more after the break.

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As revealed earlier this month, some of the more integral aspects to the 3DS’ online experience – such as the eShop and built-in browser – will arrive post-launch. In a recent financial results briefing, company president Satoru Iwata gave a timeframe for the eventual rollout: May.

In late May, nearly two months after the initial launch, Nintendo plans on deploying a sizable firmware update that will add the digital shop functionality, along with the ability to browse the web and transfer purchased DSiWare titles to the new system.

Why the delay? Nintendo is spending extra time to get it right, pointing to the faults it made with the Wii and DSi shop channels. In that regard, Iwata called the eShop a “drastically redesigned” avenue. more »

From the ‘what took so long’ department comes official word from Nintendo that time-limited demos are returning for select WiiWare titles. The initial lineup includes indie efforts BIT.TRIP FATE, And Yet It Moves, ThruSpace and Jett Rocket — all of which will be available for sampling starting November 22.

Additionally, Nintendo plans on adding more demos to Monday. The logic behind offering demos for a specific amount of time baffles us, but at least Nintendo is getting into the practice of offering them. Hopefully a sign of things to come for the 3DS, sans the time-sensitive restrictions.

Sega is busy adding an extra layer of polish to Sonic the Hedgehog 4: Episode I, so busy that they’ve had to issue a delay. Previously slated for a summer debut, the title is now on for the “latter half of 2010.” We’d assume that means sometime in fall. Unfortunate.

In explaining its reasoning behind the setback, the company noted that “[t]he additional time will allow the Development Team to focus on ensuring overall high-quality throughout the game by continuing to tune, balance, and maintain the kind of polish that an important title like this demands, and ultimately providing fans with an unrivalled classic Sonic feel.”

On an uplifting note, Sega also confirmed that the episodic platformer will hit the iPhone in addition to the digital markets of PSN, Xbox Live, and WiiWare.

Old-school, exploration heavy sci-fi FPS Descent will join Nintendo’s WiiWare catalog of downloadable offerings this fall, publisher Interplay announced today.

Originally created by Parallax Software, developer G1M2 is handling the WiiWare version, promising to retain the same classic gameplay that broke new ground in the 3D space 15 years ago with obligatory waggle support added in. Sounds like a winning combination. more »

Studio Pixel’s charming pixel-perfect platforming romp Cave Story will make its enhanced debut on Nintendo’s WiiWare download service on March 22, co-developer Nicalis announced today.

In addition to beefed up 480p visuals and a remastered soundtrack, the Wii release of this indie classic features five new play modes, including Sanctuary Time Attack and Boss Rush Mode. Both of these modes were previously announced as DLC, but Nicalis has so graciously decided to make them a standard inclusion. You can’t argue with that, no sir.

Capcom today placed dates on the digital debut of its 8-bit styled Mega Man 10. The title will hit WiiWare first on March 1, followed by a PSN release on March 11 and Xbox Live Arcade on March 31. Once again inspired by the NES originals, this entry sees Mega Man and his robo-brother Proto Man battling an army of Robot Masters under the influence of a maniacal virus known as Roboenza.

Definitely a day one purchase. We’re fond of the 8-bit generation generation and all, it sure brings back memories. Quite honestly, though, we’d like to see some 16-bit retro love too. How about another Mega Man X done in the same style of the SNES classics? Capcom, you can do it.

Putting an end to a series of sporadic teases and carefully placed hints, Sega finally lifted the final curtain on its Project Needlemouse effort late last night, unveiling the title as Sonic The Hedgehog 4: Episode 1. As originally promised, it is a 2D style side-scroller backed by 3D characters models, with Sonic himself starring as the sole playable character.

In commemoration of the announcement, Sega released a retrospective trailer that pays homage to past installments in the series, viewable above. It also gives us a brief look at the new game, wrapping up with mention of a Summer 2010 release date on PlayStation Network, Xbox Live Arcade, and WiiWare. more »

Capcom has released a fresh batch of screenshots from the Blue Bomber’s next 8-bit styled outing in Mega Man 10, highlighting various robot masters and their pixelated dominions. See it all after the break.

Mega Man 10 is primed for a release in March 2010 on the associated digital storefronts of Xbox 360, PS3, and Wii.

Mega Man 10 Screenshots

WiiWare effort Castlevania: The Adventure ReBirth, a remake of the 1989 Game Boy original is out in Japan and one avid fan has recorded a playthrough of the first stage for your enjoyment. Visually, it’s looking nothing like the original, which in all respects is a good thing. Expect a healthy dose of nostalgia as far as gameplay goes, however. Still no word from Konami on a US release date, but it’s expected to hit before this year’s end.