Egg Mania: Eggstreme Madness

Egg Mania is a puzzle game in which the player controls an egg-shaped character against either a computer opponent or another player via the link cable. The object of the main modes is to build a tower tall enough to reach a balloon at the top of the playfield before the opponent does. If the player tries to take a short cut and not build complete floors, the structure will start crumbling and the water will come up faster. (mobygames)