Majesco is bringing the Nickelodeon hits "SpongeBob Squarepants" and "Jimmy Neutron" to Nintendo's Game Boy Advance, but not as video games. Through innovative video compression tech, Majesco has managed to squeeze four full episodes of these cartoon hits on cartridges, which turn the GBA into a palm-size video player. Nintendo is pumped about the idea, and is porting "Pokemon" episodes to the format. Majesco plans to introduce the carts at $19.99 each this summer.