You will want to check out Killer Leprechaun

The Leprechaun movie series continues to grow, with Leprechaun returning. This time, the leprechaun has returned to contemporary life, but he is not pleased with his return. He uses his power to destroy and murder people, and he also makes terrible jokes while reading horrible limericks. He's a real pain.

This movie is corny, stupid and foolish. (link here) However, I enjoyed it. It is a lot of fun, despite the bad acting and corny special effects. The humor will make your stomach churn, which makes it difficult to not enjoy. If you are looking for a silly movie with good humor, you should definitely watch "Leprechaun Returns".