I was playing this for ages last night and then straight afterwards I played geometry wars. I didn't realise to start with but I was still trying to kill enemies in groups of three. :/ I also managed to double my best score with what I thought was very little effort, I'm disappointed in how inefficient I was before Ikaruga showed me the light and showed me how to appreciated my time and space when it comes to shooting things.
It got me looking into the other bullet hell games out there
Mushihimesama
YouTube - Mushihimesama Ultra Superplay - Last Final Boss TGA-RET
and
YouTube - MUSHIHIMESAMA FUTARI Ver.1.5 stage 5 boss[ultra]
that's just stupid! : o