So really, this game can either be pretty difficult or pretty easy depending on how you build your character. There's always going to be pretty over powered stuff, so I'm not going to go around and playing nerf tag with everything. If Kat is super overwhelming, I'll take another look at her. Realistically though, if you have certain builds, it's pretty difficult to lose. I'm still looking at balancing stuff as I go, but it's actually kind of secondary to supporting different playstyles.
As for the other bug reports, once again, thanks for all the reports. I'll try debugging them as I can. Sorry for the instability :\
@Sacredferro,
There are other pets in the game. You can get slimes with Science and fetish goblins with Fetish. With divinity, you can make a copy of your opponent as a pet with Simulacrum. If you have high affection with Yui, you can summon her as a Pet. I think that's it though.
As for the other bug reports, once again, thanks for all the reports. I'll try debugging them as I can. Sorry for the instability :\
@Sacredferro,
There are other pets in the game. You can get slimes with Science and fetish goblins with Fetish. With divinity, you can make a copy of your opponent as a pet with Simulacrum. If you have high affection with Yui, you can summon her as a Pet. I think that's it though.