here's the challenges! (Of course, I've done these before to check whether these challenge is possible to done or not)
1. Beat the MMZ3 with Shield Boomerang Only! (without any Sub-Tanks)
2. Beat MMZ4 with Zero Knuckle Only! (still without any Sub-Tanks)
3. Beat MMBN6 with non-edited and 1st Deck plus without Beast-Cross! (that means no beast-Out and Link-Synchro, while customizing Navi is allowed)
4. Beat X4 without any armor as X! (This should've been easy. Sub-Tanks allowed)
5. Beat "Kirby and The Amazing Mirror" with Fighter Copy-Ability only and from the very beginning! (This is very easy!)
6. Beat MMZ without any Cyber-Elves used! (all weapons Level are allowed at Max)
there. I'll add more challenge if I've done that challenge!
don't forget to vote.