I really like the art design of this game, and I can see how this would make for a fun puzzler!
Unfortunately, after I beat the tutorial level, I couldn't figure out how to get past that first level.
Still, what I did play was solid, and I enjoyed it! I wish I could play more.
Edit after playing more levels: I got to level 2. Overall, I think the solutions and puzzles you made are clever in teaching the player how the mechanics work, and are at a good difficulty level. However, completing those solutions did get a little tedious for me (i.e., manually pushing the blocks over to the side in level 1). I figured out level 2's solution, but got held back by my platforming skills (which are not good), so I ended up not completing the level. As a speedrunner / puzzler game that focuses on precision, I can see how this works. For me personally, it's a little frustrating to have already solved the puzzle but still have to take many runs to complete the level.
Overall, I think this game has legs! But I would recommend either making the speedrunning the key focus (i.e., cutting down on any tedious actions, so players can blaze through it if they know the solution) or making the puzzler the key focus (i.e., platforming skills are not as much of an issue - gives the player more control on when they want to leave an action for the mummies).
PS. I love the cameo.