There are 4 modes:
1. Boss mode (Must play)
Kill one boss in any difficulty level to unlock the next boss. Each boss can defeated with different strategies. To know how to kill a boss, you can see the tips

2. Survival mode
Its endless high scoring mode. You have to kill other snakes with special abilities by using powers or by normally hitting them. Gradually, different kind of snakes appear with more dangerous abilities. Note: other snakes can also eat your food

3. Time mode
Score as much as you can in a given time window. There are some time capsules to increase your time, some special gift boxes to grant you special time power, and there are other snakes to eat your food, time capsule and to negate your time

4. Classic mode
This mode represents the conventional snake game you are all familiar with