Every eight butterflies that Sparx eats will gain you an extra life.
Approach a dragonfly slowly so that it does not fly away from you. It still will run away -- try a jump spin move.
When trying to get into the electric door in the first world you do not need the electric breath. All you have to do is charge into the electricity sign.
In the Dragon Realm (the one with the Dragon Spirit) go towards the Dragon Dojo. There will be three sheep. Kill them, then go across the river and kill the three sheep there. Then, return and kill the first set of three sheep. Keep doing this until you get the desired amount of lives.
After talking to the initial professor at the start of the level, eliminate whatever is around and cross the lava chasm. Get rid of another Dino after safely getting to the other side, do what needs to be done (i.e. collecting gems and such) and enter the temple. Watch out -- once inside the temple, to your right, there is another Dino. He will zap you if you do not notice him. After getting rid of him, cross the lava using the round pads. You will then see another professor. Talk to him and learn what he has to say. After he is done babbling, enter the room with the big monkey at the far middle containing a dragonfly in its chest, and five smaller monkey statues (two on the left, three on the right, each with a different color gem). Eliminate what is around, and pause game play to take in the area. Look to the walls for guidance for the puzzle. Glame the different gems in this order: Red, Green, Blue, Purple, Yellow. This will release the dragonfly. Note: It is easier to freeze everything except the chameleons in the level -- just freeze and charge.
In the racing part of the speedway; in order to beat the last thief you will need to pass through the star located on the left side of the lighthouse, at the end of the lap. Hitting all or most of the stars will increase your chances.
When racing in the speedways, if you get into third place, you can no longer flame or rocket the last two competitors or your position will stay the same. Instead, find as many warp stars as you can, stay with the red dots, and complete the challenge.
To get through the gate with the lightning bolt on the lock, ram into the lock and you will get on the other side.