PutUp has an interesting feel as you glide your ghost across the bottom of the screen collecting colored candy. Levels are just columns with the candy icons filling up the stacks, and between-level menus (the towns you are playing in) have an interesting flat 2D feel to them that almost have a paper-cutout appearance. PutUp doesn't go for an uber-sleek or shiny approach, and instead pulls out a distinct Halloween theme with sprites that, while look good, feel slightly off.
The game's sound gets the job done, but doesn't really offer anything too inventive. Both the background music and the various sound effects are quickly forgotten and don't really add anything to the overall experience. The only place where sound can be helpful is in the between-level challenges where objects fall from the sky. Here, a warning buzzer is played when non-candied falling objects appear.