On 1 and 2 stage you can just use a friend Lucy and you 'll be fine..

Vs Raizo I use this team, (sorry is not F2P at all):

Shirahoshi Shirahoshi

Leg Marco Leg Enel

Leg Magellan Raid Franky

Tip:

• Room 2: be carefull to not get anti-heal from Blue Lapins (<50% hp)
• Room 3 and 4: Stall and heal with 2xShira\Marco while do about 500.000 dmg at Inuarashi\Nekomamushi stages and kill them with Leg Enel (when his 2M dmg is ready)
• Room 5: Use Raid Franky, stall until your L Enel have 2M dmg on his special and use L Magellan, at revive use Th Sunny to deal 1 dmg at all barriers and use L Enel to finish the room.

P.S. Please if some one of my friend list see this post, can you set Shirahoshi as Captain? Tnx.