I can't read the dark green text due to the color and size. Sometimes boxes will spawn underneath visible boxes, and they hold priority when hit. One time I finished a level with 2 boxes being hit at the same time and the level refused to change despite there being no boxes. I was able to fix it by refreshing the page, but it's something that should be fixed anyway.
Part 2: There's no descriptions or lore about them, THEY DON'T EVEN HAVE NAMES. Some of their designs are cool, but without anything to hold them in my mind with they're ultimately forgettable. Speaking of forgettable, there are several sets of monsters which are basically the same creatures except a different type theme, normally I would only be a bit upset about it but here there aren't even any actual types, so it's even more pointless. Since there are no types, and no moves or anything to differentiate them except for some little differences in DPC and DPS. This leaves all the monsters completely interchangeable and thus EVEN LESS memorable. There's also the fact that I came into this expecting to be able to "fight" with monster in an idle game style, it turns out that instead I purchase humans and level them, I didn't get a single monster until at least reset 4, and they barely matter.
I was already questioning some design decisions when it came to progression. I will be putting this down and never coming back, because this thing lost my save. It's not that it never saved, since I've had connection issues before which required me to refresh and it was fine. But I just refreshed and found it asking me to agree to the privacy policy and select a starter, and I am DONE with this. I refuse to SLOWLY, GRIND my way back to where I was with all the avatar levels, with all the resets, with all the monster points and EVENTUALLY monsters. Speaking of which, I care absolutely nothing for either the avatars or the monsters.
It seems like I can't play this game. I figured out that I'm supposed to click where the icons would be if the game weren't stuck at about 3/4 size and in the top left. The problem is that the + and - buttons are too small for me to intuit where they're supposed to be. So unless you fix the issues with the GUI this seems to be practically unplayable, at least for Chrome users.
 "KNIVE"){kind=icon}
 "Idle Mons"){kind=icon}
 "This Is A Game"){kind=icon}
 "Idle Dice"){kind=icon}
 "Idle Fireworks 2"){kind=icon}
Those things will be taken care of in V0.2! :) Thank you for your feedback!