Mole in the City/Trivia

Trivia

 * Initially, The Mole was supposed to be a blind secret agent in regular episodes as he is in this episode, but the idea was eventually scrapped as he remained a regular character in the Happy Tree Friends universe.
 * It is actually possible that The Mole could have survived the explosion from his mole-bomb, as when he blew up a doorknob with one, the mole-bomb generated only a small weak explosion. (However, this may vary, since nine bombs created a large explosion that killed The Rat.
 * It is unknown if the storyline will continue in Ka-Pow!, as The Mole does not appear in the Ka-Pow! poster, but does in the series' new opening.
 * The official Happy Tree Friends website labels the episode under Ka-Pow!, though the episode was released long before the first episode of Ka-Pow! even aired.
 * When the hamster ball flies toward the mousetrap factory, the Pig Child can still be seen floating upwards with the balloons.

Superlatives

 * One of The Rat's injuries is similar to Sniffles' in I've Got You Under My Skin.