There are little bits of food that Jim can throw to distract enemies from him. Won't work on all enemies. He throws it just like a rock. The bigger the food the longer distraction time.

Touch one and you'll become a bit bigger.

a thing like a tri based pyramid that is twice as tall as it is wide and has this metal ball on the top and has a switch on it push the switch and first it fires the metal ball upof the top of the screen then it comes down on top of the bombstercom and it blows up high range

perhaps an inventory will come in useful if there are alot of weapons. perhaps you collect powerups to make your inventory bigger

gravel you find sometimes that enemies throw at you. you can use them too