>>725075757 (OP)
Rabi Ribi is an excellent game. Very challenging and memorable boss fights. But also, by design, you can reach the end of the game at absolute 0 if you know what you're doing with all the hidden exploration tech. I know no other game with (organic) sequence breaking and rewarding skill-based exploration baked in this well. Amazing boss fights too, probably the first time I thought that shmup/bullet hell gameplay was able to translate well into a platformer game.
TEVI felt disappointing in many aspects compared to RR, even if the moment to moment gameplay and combat against overworld enemies actually felt better to me because the fake bunny was smoother to control. But bosses and music were overall less memorable. Reminds me slightly of Silksong when put against to Hollow Knight, some things were somehow sacrificed to make the main character faster and more reactive.
Only tangentially related, but today Last Command (another game published by Crespirit) is releasing a DLC two years after its initial release, and Erina/Tevi are making a cameo appearance in it. Unique and satisfying bullet hell game if a bit janky in certain areas. If you liked the two games previously mentioned I am confident you will enjoy LC as well, final boss on the highest difficulty setting almost reminded me of Irisu in many good ways.