Use the number keys to change character. And remember that you can wall jump, because you are going to wall jump a lot.
Move with WASD, It's the controls that work the most.
This version of the game isn't as good as the download version that I have here http://gamejolt.com/games/platformer/jonnil-timetravel/41719/
There were many problems when I tried to make the game for HTML5 so I know most of the bugs in this version, you can consider this version as a demo version.
The game isn't finished yet, I uploaded the game so I could get feedback, like Early Access.
Update 1: Fixed the issue that you get stuck when on a wall near the ceiling.
Update 2: Text is more visible whatever the background color. some background is scrolling now.
*Gamejolt Version also have a download link! Your download will include Stand-alone version of Jonnil Time Travel for Windows.