Glad you had fun! Yeah, the game is too simple for now since I was way too late to the jam :( I have a ton of features planned where the difficulty will increase with time, introducing some buffs/debuffs, things you should not press, etc. Thanks for the suggestions!
Regarding the spamming of + then -, I added a timer and randomization of icons, so it could be minimized to some extent, but yeah. Will be fixed in future builds. Thanks for playing!