ah shit, i did have a 2-pixel brush going. however, the zooming and pixelling is not very satisfying with this app. the cursor/pixel does not match up with what i've placed on the canvas, which is a bit annoying.
this app does work really well for painting and freehandery style, non-pixel stuff. as deerfactory / lm / seeka / awful / newbstress / esp / xxcrew / pearpicker and others have shown.