Super Mario Warp Zone 2
Mario, Bowser, and three Toads have been sent through the Galactic Warp Zone, and Mario must find a way to defeat Bowser and make his way home. A medium-sized hack with 31 course stars.
Mod Note: The possible but unintended 100 coin stars will freeze the game in some places unless you find a spot that is safe to spawn+collect the star, where ground pounding produces the normal particle effect. This old bug existed in some hacks because of the level boundary patch & spawning a star outside the normal confines of the level to my knowledge.