Spiders appear in the backgrounds of the levels. However in a fifth world are a fluffy evil black creatures with sharp teeth and red eyes which might frighten you.
A first boss is a dragon. A fourth boss is a mechanical dragon. Both of them dying in a comedic way There are also several dragon enemies through the game including: - in the first world in one level (the one right before the bossfight level) there's a part when you have to kill blue dragons and you can't avoid them. - in the fourth world there's a one level (the one right before the bossfight level) where you're being chased by sea dragon. It is unknown if it dies or not since it's getting flushed by the player at the end of the level and we don't see what happens next. - in the fifth world there's a one level (the one right before the bossfight level) where you're being chased by three dragons. All of them dies from lava at the end of the level.
In the game you save small creatures called Teensies. In most of the levels one of them in each level is a small Teensy implying it's a child which have been kidnapped.
One of the ways to kill the enemies is to make them fall into the water. They can't swim and they'll choke on a surface of the water in a very comedic way. (Excluding the fourth world)
One of the player's deaths in a game. For example you can get killed by dragon's fiery breath or by falling into a lava. Two enemies also die by lava: in a third world in the level right before the bossfight level, the character which chases you, dies at the end of the level by drowning and being melted by lava. in a fifth world there are three dragons which dies from lava, it is unavoidable since those dragons are chasing the player and must be killed in order to progress.
There's a one comedic cutscene (which is repeated a few time thorough the game) where the antagonist(?) squishes a nose of a character which is tied to a log. The said character gets saved and is okay and not injured at all.