It seems that you're using an outdated browser. Some things may not work as they should (or don't work at all).
We suggest you upgrade newer and better browser like: Chrome, Firefox, Internet Explorer or Opera

×
DON'T USE THIS Boss Fight
https://www.youtube.com/watch?v=5ylodKBE8Jg

Well the video only shows which boss i mean the similarity to cave story boss but it isn't my recording.
Anyway the glitch was somehow i thought the enemy was invisible when in third phase but actually it seemed he somehow went under the area for sometime which i didn't want to restart. I only noticed the gun which he uses and also when there were several versions of his eyes they sometime appeared on the north area of the area where you could fall down but not on ground
Yes i was using the new version i think of crosscode which is 1.4.2-3.
But i had luck that he appeared back on the surface of the area after waiting at least a couple of his attack phases think it was like 4 minutes until he appeared again on the surface.
This happened when i got his health to his last phase of different attacks, he couldn't hit me while he was under the area.