You can still sit in the upper right and nuke Invader without getting hit.
This has been a problem with more than a few bosses.
This is why I stuck those purple rear-firing shots onto Mirror and a couple of others. To say, no, you're not standing behind the thing or to it's side, go figure out something else.
Typically that's the way to get rid of safe spots. Just constantly smack them with stuffs.
That's why I suggest a P2. Otherwise, fighting it as intended would look like a game of pong.
Mirror? You mean get real close and stare it in the eyes (and make out) Mirror? If I get any close to Mirror, our hit boxes will collide. Every time I look into the Mirror, it breaks. I'm so sad.
Ah, yeah, it's possible to get pretty darned close to Mirror, aint it.... I've managed to crash right into it more than a few times (no, I dont know how). I've considered adding more to it, but... the version that most people are seeing is an early-game boss. Not really meant to be too tough at all.
For Invader, I would not be opposed to simply having a second phase on it. Let it do it's own fighting during that; maybe have an invincible minion or something floating around and assisting, I dunno. As it's not my design I'd prefer not to be the one to make that part. But it'd solve the current problems. As there IS, right now, one other issue than just the beam thing: If you outrange the beam and have a high enough fire rate, you can literally just stand totally still, in front of it, and just keep firing, and it cant do anything. So that's another problem.
Typically that's the way to get rid of safe spots. Just constantly smack them with stuffs.
Like a big FU laser.
Pretty much.