加入暂停，声音同步，原版scratch可运行

↓ 显示模式|change display mode
←→ 快进快退|seek
空格|space - 暂停|pause

原作品简介|The description of the original project

view with a fast computer. this project renders the bad apple video with a technique called "Quadtrees" after decoding it. it uses pen stamping of squares because all other methods of rendering squares are too slow.

声音没有真正暂停，通过改变声音的播放速度实现暂停后声音的同步。
The music didn't pause actually. It just change the playback speed to keep on the pace.