If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Mario and yoshi is back to the adventure to collect all the yoshi egg and jewel. Watch out for
the monsters that are around the platform, Do not let them get you. Kill them with mario fire ball
Catch all the yoshi egg and jewel and exit the portal.
Use arrow keys to move and space barto shoot fireball.