Fun little game. I haven't played Cave Story in a long time but from what I can remember Kero Blaster is weaker in nearly every aspect. Still a nice game with satisfying weapon upgrades, some atmospheric areas, nice music and fun bosses. The story is okay but the game's short length kind of hampers it. The mutated president did genuinely unnerve me somewhat and the ending was cute. The gameplay is generally fun but I often had some small troubles with the controls that could get annoying considering how quickly you can die. Sometimes my character would keep moving without my input and changing directions while shooting/switching between shooting up and forward was pretty clunky. I like that the unlockable hard mode has remixed levels and a new story but my issues with the gameplay and the fact that I already had some trouble with the end of normal mode makes me not really want to go through it.