Develop a 3d game

The project will be called bull run, a game with 50 level the 3 first level very easy then increase the difficulty more and more, the points will be in bull wedge, integrated in the level of the shoes in boxes to break by touching it that allow you to run bcp faster, a cloak that allows you to pass through obstacles without dying, and gloves that allow the character to come to the character all the pieces without touching them and all its lasts about 20 seconds, and include all this in the game store charges 3 euros for the pack which includes all this once since it will be rare to find it several times in the game except in the first level include this several times to later make the player want to buy this. Budget is not high.