Tip for high scores: shoot for big killstreaks. Tip for big killstreaks: upgrade your offense (multishot, rapid fire, crit, pierce) and try not to move around. You actually don't want to be picking up pixels!
didn't really feel like I was using theory in most of those levels. Just run forward and hit the obvious next switch to proceed. IMO, if you have to put giant "go here" arrows in your game, your level design is weak.
 "Rune Hunt"){kind=icon}
 "Reincarnation: Riley's Out Again"){kind=icon}
 "Pixel Purge"){kind=icon}
 "Earl Grey and This Rupert Guy"){kind=icon}
 "Epic Battle Fantasy 3 Walkthrough"){kind=icon}
![Play [Visible] III](https://cdn4.kongcdn.com/game_icons/0018/1532/Thumbnail.png?i10c=img.resize(width:250) "[Visible] III"){kind=icon}
 "QWERTY Warriors 2"){kind=icon}
 "The Deeplight Expedition"){kind=icon}
 "The Fog Fall"){kind=icon}
 "Depict1"){kind=icon}
 "e7"){kind=icon}
 "Ray Quest"){kind=icon}
 "Color Theory"){kind=icon}
 "Epic Coaster"){kind=icon}
 "Mystic Cards"){kind=icon}
 "Epic War 4"){kind=icon}
 "Little Stars for Little Wars"){kind=icon}