We're going to make it so if the character jumps on top of the normal monster, it will squish/kill it.
Create a new object monsterDead.
We want to kill the monster if we jump on top of it. In order to do this we have to have 2 conditions met:
Condition #1: The player should be moving downwards
vspeed > 0
Condition #2: The player has to be above the monster (or at least 8 pixels below the top of the monster)
y < other.y + 8
Go into your character object and then into the Collision with monster event. Add the action Test Expression to the top of the actions...
Copy/type in the following (we're combining these 2 things into a single expression).
vspeed > 0 and y < other.y + 8
Then add the following actions after it...
We have 2 sets of actions. First add an Else to separate them...
Then drag start & end blocks at the beginning and end of the 2 sets of actions so we have this...
Test it out and make sure it works.