Can't beat the third enemy in Virtual On. Any tips?

[SublimeHawk]

I am trying to do the Haruka request where you have to beat the third enemy in Virtual On. I am finding this to be impossible. The third guy dodges everything I throw at him and also does a green spiked ball attack which is very hard to avoid. I'm finding this harder than any other minigame in the series. I've platinumed 0, Kiwami and 6 and none of the minigames were as hard as this. It's harder than Mahjong and Karaoke for me. How did you guys do it?

[Wagszilla]

I was the pink girl robot, like 4 from the left

 

Hide behind hospital building or whatever it’s supposed to be

 

Jump, strafe left/right while in air, shoot gun, land, repeat

 

It took some trial and error but it’d make me more successful at avoiding the spiked ball

[PlatinumLeznis]

If anybody else is struggling with this - you CAN continue and select other character. In my case of trial and error, it took me up to 10 minutes to beat the third robot. I think I've done this with third or fourth character from the right, but I guess Wagszilla's tips may help you even more.