Nice game! I really liked the level design and difficulty balance, it felt fair and engaging. The multi-language support and fun animations were great touches too.
During my first playthrough, I didn’t immediately realize where to go, I collected all the hearts and waited, only later spotting the portal at the top. I think starting with the fourth level might work better, since the goal is clearer right away.
Also, it took me a while to find the jump key, spacebar didn’t work, which was a bit confusing.
Still, overall it’s a solid game, I completed all the levels, and the music was genuinely good! The options menu was also a nice surprise, especially for a jam game. Well done!