Here is some tips:
1. u can shoot arrows by clicking
2. u get points by standing still and not shooting
3. dont pick up rotten chunk. (they hurt you)
4. creepers damage 3.5 hearts.
5. zombies damage 2.5 hearts.
6. no reason to collect sulphur (almost inpossible to get TNT)
7. u dot keep loots.
8. there is no pause
9. ZOMBIE SOUNDS OF CREEPERS?!?
10. u are invertible after getting attacked and they are to.
11. explotions can damage you twice.
12. if you are getting followed by a creeper walk into a zombie and than to the creeper and you will only be damaged 2.5.
Usefull?