looks like legitimately great cave story like game. i like this shield mechanic. also it's a very good idea to allows players to configure the battle settings. hyped to see full game
but i have one small personal complaint. imo J is a very bad choise for attack key. i think the classic layout (arrows + ZXC...) would make much more sence. i hope in full game it will be possible to configure controlls
overall it's a very cool boss. it was fun trying to figure out the patterns and trying to dodge them