Ok this game can be fairly hard if you don't you don't know what to do so I am going to help you :):

To move your Scorchio through the volcano u have to click on the screen.

The shorter clicks you do the more forward he will go. Short clicks is useful when you are coming very close to a fast moving fireball etc..

The longer clicks you do the Scorhio will glide more. Gliding is partically useful for going through a tight squeeze.

Use the spacebar to help you slow down or avoid blocks. But I do not suggest this to beginners because I find you are more likely to crash.

Avoid the red walls, fireballs and fireblocks. Gradually as you continue the Scorchio will begin to fly faster so be aware of what is coming towards you!

ALWAYS try to collect the blue sheilds it will protect you continuely UNTIL you touch the wall, fireball etc... Dont bother trying to get the sheild though if it puts you in danger of crashing

Try to always collect the crystals they give extra points but remember if it puts you in danger of crashing it wont hurt to leave them behind.

Try to always stay central of the volcano but when you become to the large areas of space it is smarter to go high!

I hope I have helped and good luck on reaching the high score list ;)