PapitoMyKing - I fixed the collision part by :
Fixed .Capx File: https://onedrive.live.com/redir?resid=A ... ile%2ccapx
1) I made a separate collision event for hitting the head because it conflicts with the Every(X) seconds condition. That is the reason for the delay of the collision event.
2) I also lessen the range of the head collision polygon so that it will only trigger collision per grid.
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There are also other bugs in your game that is needed to be fixed: (I suggest make it on another topic)
1) Optimization of the game.
2) The snake movement that causes a glitch. For example. Try moving all arrow keys in the middle of the box, and the head it will be game over. The Snake Movement Event must be the problem. It needs to be improvised.