I absolute love this game so far!! The Undertale-style combat combined with the jump feature feels so dynamic, and fighting against Miku, Neru, and Haku was an absolute blast. The spritework and catchy soundtrack give it so much charm!
Since it's on the shorter side, I'd really love to see a Level Editor or a Hard/EX Mode added in a future update! Having randomized attack patterns or faster projectile speeds would give it so much replay value. Also, a native Linux/Proton quality-of-life patch and a Spanish localization option would be amazing for reaching more players. Keep up the awesome work!