Collision of Knockback between player and monsters

[ShingingDB]

How do I make it so that when the player runs into a monster, he get knocked back a few cm in the game from all directions.

Then how do I make it so that, when the player presses an attack button, the player attacks the monster. The monster will then get knocked back a few cm, and take damage.

Extra: To those who doesnt mind me asking too much, heres another thing. How do I make it so that the monster gets a set amount of HP. After the player attacks the monster a few times, the monster will die when the HP has reached 0.

EVEN MORE EXTRA: To those who doesnt really really mind, how do I make it so that when the player attacks the monster, the player will attack the monster with a different amount of damage. The amount of damage will increase as the player levels.

[d-soldier]

Lets start simple here... All you need to do is use physical responses. Under your PLAYER's controls, add a collision effect (on any side/of monster)/add action/physical response/set to event actor only/and play with the numbers here for the desired effect.
For attacking, you will use the same type of physical response/collision effect based on your bullet (didnt say how you were planning on attacking) As far as hitpoints and damage go, the search feature of the forum reveals:
http://game-editor.com/forum/viewtopic. ... 12&start=0
http://game-editor.com/forum/viewtopic. ... hit+points