interesting ideas you have here, especially with the lives system! i actually quite like the concept! the idea of mixing a platformer with a shmup reminds me a lot of super mario land :) the sprites are also very charming, especially enjoyed how well the controls were tutorialized ^^ i like the enemy designs, and the shmup levels were fun to look at :D
i feel the execution could've had some tweaks, tho! i like the variety of the levels, but they rely a lot on trial and error, which i think doesn't fit too well with the "limited lives" angle, especially the shmup levels. the shmup levels are a lot harder compared to the platformer ones, and i think you might have noticed that based on them advancing you to the next level on death? i unfortunately wasn't able to complete a single one... so i would consider either lowering the difficulty or making them "bonus levels" that don't subtract lives on failure. i really like the lighting system, but imo more work could've been done to make sure attacks are properly telegraphed even in the dark
still, i did beat the game, and i did have a pretty good time all things considered, so good job :)