This game is really cute I love the interpretation of the theme! You've got great feedback, pixel art, and music and the appliance designs for the enemies is really fun! I absolutely love the roomba and toaster abilities. I found that if you spawn multiple toasters on top of each other the toast will push the second toaster as well. I feel like this could potentially be used similar to bomb jumping in Metroid.
The biggest piece of feedback I have for this game is the ability challenges both require precision, and drain a lot of your energy. These are easy to fix, and you've got plenty of play testers to help find them now! After the first couple of the ability checks there are sandbags near by, but the first few I had to backtrack a few screens to find enemies before I could try again. I'd consider putting a respawning enemy or a vending machine on the same screen as these challenges to make sure the player can't get soft locked or has to backtrack a while to find a source of energy.
The first Roomba challenge is very tough because you have to both get the timing during the jump and the spacing from the wall correct. Since it's the first time the player needs to use the ability I'd adjust it so that the slot for the Roomba is on the floor and you don't need to jump to get it in. The toaster challenges are tough because like the Roomba it spawns a set distance away from you, but it does not have the range indicator like the Roomba does. The first challenge where you have to use the toaster to scale the wall the platforms are just about as long as the range for the toaster to spawn, so you need to be standing right on the edge to get the toaster to spawn. Doing this multiple times in a row is tricky without falling, and it's easy to run out of energy. Jumping at the apex of the toast helps a bit, but I'd suggest making the platforms wider. Same with the second toaster challenge, I'd make the platform just a tad wider so it's more forgiving.
Awesome job, I really loved this submission!