Wow, this is honestly incredible! I don't know about game design or anything, but the fact it took you only 9 days to make this is insane!
It reminded me a lot of Leg Breaker (a game that I'm pretty sure is on this site exclusively) and They Eat Pixels mixed together, I really enjoyed it.
One critique I do have is that not all walls need to have that slidable quality to them? I thought it was a really fun game mechanic when it was necessary (especially on the last level), but with some of the smaller platforms (like your second promotional image where you had to rig the explosive while trying to avoid the guy right above you), it was slightly irritating trying to jump only to find yourself clinging to the wall. I hope that makes sense?
Thoroughly enjoyed it otherwise, and would love to see some more if you plan on expanding this game! :)