You have to double-click the flag. Use arrow keys to move. You can only go right. Get to the right-edge of the screen to move on. Press the green flag or the button in the top-right corner of the screen to restart. Do not touch any lava (red.). Water (blue) makes you float. Yellow is bouncy. You can climb ladders (brown.)
Go see Part 1 at: https://scratch.mit.edu/projects/119471111/ All credits go to @ejjiang (me) for the coding. All 10 levels are possible. If it freezes, you can press "R" or the restart-button.(Can anyone fix this?) Shared on Pi day 2017!