I recently had an unhealthily long binge of Bunny Flags. Bunny-themed tower defense? Score! The attacking enemies are fingers and hands (who start to acquire football helmets and suicide vests), so it feels like “Little Bunny Foo Foo goes to war.” Your towers are bunnies in teacups. You can also choose to specialize in towers or your hero units. The maps remind me of Desktop Tower Defense: the obstacles are things like calculators and tomatoes.
I recommend playing at the highest difficulty possible, because the bonus for barely surviving that is greater than the bonus for doing any lower difficulty perfectly.
“Unhealthily” passes spellcheck, score. But “spellcheck” doesn’t, huh.