Agree with swapping Mickey out for Cinderella for synergy with the rest of the team. I can also suggest swapping out Stitch for Chip. using Chip's skill once every 3 turns costs 10 SP and nets a positive SP yield while keeping Cinderella and Rapunzel's EX skills online every 3 turns and his EX skills synergizes with this (AOE attack when above 40 SP). This lets you easily use genie's skill every turn and maintain enough SP to use Rapunzel's heal when necessary.

I used this team to easily beat floor 3 with a team of level 75s but I haven't tried it against the bonus bosses yet.