The game was fun, but quite a bit too easy. I think either the prices of shop items or money should be revamped to give lower money amount collected, and items at higher prices, because you can literally skip to the last/best weapon easily.
And if not, at least extend this game to more chapter, it was also kinda short. =/
Just a note to those who play, it's best to have a spoiled monster then a discipline one. A discipline monster stat increase by 2 points per training, a spoiled monster can easily counter this effect when it bring you worthy items to use for training. Use a item it brings you like a berry and feed it to your monster. All berries have a negative effect that comes with it, but you can easily counter that by by buying in-training items that to not only negate it, but increase in that certain stat as well. Doing so will will nearly double your monster stat, plus you can also sell any items the monster brings you if you don't need it, so that can help buy the items you need.
Make sure to + for everyone to see. ^.^
The game is fun but it's a bit hard to pass some stages like the 3rd boss or trial of fire. I just have to agree with Xenoeagle that checkpoint wouldn't hurt here and there.
The boss was easy ^.^, All you need is to use the bomb ( berserk mode by double clicking ) right on him ( literally ) and it will take a great amount of dmg away from him, and you won't be dmg cuz u will be immune for a certain amount of time.