Finished the main story. which I thought was decent.
If ever there is a Raidy 4, this is what I would want.
1. Keep Fusion, but throw a bit more gameplay elements into it.
-MP was useless unless you were Raidy, that needs to change. For example when merged with Folles have access to Spells that improve either attack or defense, with Fonfon have access to special wolf attacks or weapon skills that do extra damage but use mp to use. With Tis, she could have spells that take hp away from enemies to restore yours, and have access to Demon Fire attacks..
2. I absolutely hated the weapon upgrade system in the game, due to the fact that Erouge would pop out something you already had or wouldn't upgrade items in the correct order. I got the chainmail after I had got the plate armor. got an extra tier 1 shield that I already had. I'd like to see a combo of Raidy 1 & 2 for weapon upgrades, have a shop for basic weapons and then be able to find weapons / armor throughout the game which are better than the shop stuff, or be able to craft better weapons / armor at the blacksmith with enough Gold / materials.
3. Story was fine and was the best part of 3, so something about a sorceress trying to steal all the spirit powers and only Raidy, Leeah and Wynn are left..Something like that.
Final Boss Fight would be Raidy merged with all 3 of the monster girls able to manifest whichever form she wants with a recharge timer on when she can switch forms.