Helper to Hero... the main changes here to consider is that: You have less tomatoes to use. I never really used too many tomatoes when I did play in the Arena, so that isn't that much of a concern. The bosses are now in a set order rather than randomized. Computer Virus has more life. Your helpers have different jumping mechanics than Kirby. All in all, I just treat this as another version of Arena that has Wham Bam Rock and Jewel as the final boss rather than Marx.