i made it home! this was fun and cute :) level one confused me at first because it wouldn't let me place items, but once i got to the second level it made sense!
one thing i might look at some more is the order of levels. some of the levels are a lot more simple than ones before (i think the one where you just have to reverse the green slime would be better before you have to use two slimes and reverse one of them, for example). that way there's more of a steady introduction of mechanics needed, instead of feeling zig-zagged back and forth.
the reverse arrow confused me at first, because i though the blue and purple arrows were just pointing your slime in the direction they were pointing. took me until the last level to realize that the purple arrow reverses your direction both ways. maybe another symbol would be better, like a circle-y arrow? i also didn't use the speed up/slow down arrows (that's what the other ones were, right?) to much, which might be why i didn't realize about the purple arrow til later. i think more incentive to use that would be great--maybe the green slime can turn around if it hits a door that's not open yet? then you'd have to be more careful with getting other slimes onto the buttons quickly while slowing the green slime down.
overall this was a fun little game, though! nothing was broken, which is always a plus haha. i liked the art, and slimes are always adorable. the bouncing animation was really nice :) good work, and congrats on the jam!