[TOMT] Game, one pixel with the ability to shoot hundreds of thousands of pixels using weapons

First time using [TOMT]! So basically from what I recall when I was little, you start out as one dot on the screen, and there are multi-colored pixels in groups located everywhere on the screen. The level starts off where everything is frozen, then they start to move, and the enemy pixels just vibrate and just arbitrarily travel. The one pixel (you) basically run around trying not to touch the enemy pixel, and shoot (space bar) them so that they disappear. Once you kill the last pixel, you move on to the next level, and i think (not sure how), you get a new weapon. One of the weapons I clearly remember is a ricochet (I don't know if it was called that) where you shoot once, the bullet would kill one pixel and split into two bullets, which then kill another pixel, and the bullet splits into two more bullets (in this level, if the bullet hits you, you're dead). Hopefully someone can give me the name of this game! I thought I knew what it was called, but after much research, I couldn't find the game based on the name I thought it was. Thanks!

EDIT: Sorry for missing details. When I was little, it would be about 10-15 years ago. I'm not sure if Flash was around back then, but if I remember correctly, this game ran from the HDD. I remember playing it in full screen, like it was in DOS mode. I think it was around the time of Hocus Pocus, or Hellbender (I remember playing those games around that time).

EDIT 2: The game is very similar to this, but you have the ability to shoot weapons (whereas in the picture, you're just dodging them)