Semi-Spoilers
Good game just wish it were a bit bigger also wish the last guys attack was easier to use, I found him only useful in one stage where i had to blast through the walls of guys and i didn't have my final party upped, I liked the mage but having the arbalest center with the rogue and cleric to the sides worked the best for me, all I had to do was get the rogue a few upgrades real quick or the arbalest an upgrade to puncture holes which made the wizard useless unfortunately.
I actually found the easy setting frustrating at first and it took me about 7 tries to find out a combination that worked for the first castle no less and I only barely scrapped by, has a nice bit of replay but I'm kinda sad that you rarely get to see a level three upgraded monster since each level only has five waves I've only seen the level three slime and it was never used cause it wouldn't let me upgrade it until everyone was passed on the fifth wave seems to be a glitch that you sometimes can't upgrade right away.
Would like to be able to go back to a previous gun, I've tryied double clicking onto the pistol gun but got nothing so i was stuck with the defense gun doing much less dmg.
On my first run through I didn't kill the boss and just got the kitty i got both badges I decided to play through again just now and killed the boss and didn't get the badge even after grabbing the cat at the end.
Fun game and you can play without the super blaster just makes it a bit longer I ran past the boss and grabbed the super blaster first haha not sure if that had any effect on not getting the badge.