Invader is a vertical scrolling shoot-em-up for the Nintendo Game Boy Advance. There are 8 levels to shoot through each ending with a end-boss. The player can select from 2 different ships each with specific features. Enemies leave coins that can be spent in the Shop, where upgrades such as weapons, extra lives, and credits are available for purchase.
XDR horizontal shoot 'em-up released exclusively in Japan. The game is notable for being one of the poorest received Mega Drive games ever released, and was frequently voted the system's worst Japanese-developed game by readers of Beep! MegaDrive magazine.
Zombie Defense Squad is a first-person shooter in which the player has to defend a small town from zombie waves. To win a round, a certain amount of zombies have to eradicated from the map. Each killed zombie is rewarded with experience points (which leads to level-ups and automatically assigned bonuses like faster reloads or higher walking speed) and money. The latter is used between rounds to buy better weapons and ammo in the store. Each round adds zombies to the wave.