With how much that was put into this, I can understand why there isn't a browser version. The arcade games that you have in it are pretty fun. My only critique is that with the racing game, I felt like I could play that forever. So with the amount of heartbeats that I stored up, I could have gotten a giant amount of more heartbeats from it.
That, and it took a while to figure out how to start the games. I didn't know that right-click was to insert a coin.