I see lots of what I mentioned in my Secret Santa letter here! Lego and music, platforming gameplay, and I believe that wrench is a subtle reference to Ratchet & Clank?
It may be incomplete, but I had fun messing around with it and breaking stuff! The bouncy drums and breakable pots pave the way for some interesting platforming challenges, and the yellow boost circle thing only increases that potential!
I don't know if it was intended, but the more grey Lego men I defeated, the more music notes they dropped. I ended up with over 1800 in total, and it was immensely satisfying to see hundreds of notes spill out of their bodies...
Thank you for this, it brought a smile to my face!