Goosebumps Nightmare Arena

This is an idea I came up with while I was bored and now I’m just going with it... This is only part of it is just a fraction of the ones coming soon but they may never get shown here... But enjoy these titles and if you have any questions, such as plots, ideas, etc please ask...
The Creature Teacher vs The Invisible Boy
The Abominable Snowman vs Monster Blood
Werewolf Skin vs The Haunted Mask
The Ghost Dog vs The Vampire Poodle
The Blob vs The Praying Mantis 
The Executioner vs Slappy
The Pumpkin Heads vs The Body Squeezers