Unlike in other tower defense games, turrets can be placed anywhere and the enemies will go around them, forcing them to walk along any path the player makes.

Playing in Classic and Extended modes limits the number of rounds in which the player must defend to 100.

Only Grasslands was present during the initial release, featuring an open field in which enemies enter from the left and exit to the right.

Crossroads was later released, also featuring an open field but enemies cross from top to bottom in addition from left to right.

Crystal Caves features an open field with one entrance encircled by an additional train route.

[5] Select Star Media was highly critical of the PC port, but expressed enjoyment of the mobile releases.