I 100%'d Kirby Super Star Ultra last night and I still hate the button configuration. >_> That's my only major issue with the game though. Wonderful remake, but why couldn't they have just given people control options? D:
Edit-
Every single DS platformer I've tried either on an emulator or in person had the jump button as B by default or allowed you to configure it to B. Even Starfy, a game made by the company responsible for Kirby, had the jump button as B and Y as attack. I'm absolutely dumbfounded by the button mapping in the DS Kirby platformers. It's an absolute shame since that is my only big problem with the game and it's rare for me to play a game and only find one major issue.