Free Version

The free version of Smash Hit refers to when the player has not purchased the premium upgrade. It only lets the user play in classic mode, does not show statistics, disables cloud saves, and removes the ability to continue from checkpoints.

However, you can see Hyperspace in Checkpoint 10, as all the dust is lengthened into streaks. You will rewind back to the beginning, but the room you rewind is only the first stage of the Introductory stage, with no Pyramidal Crystals, door, glass bar,... - in fact, nothing at all.

Suppose you rewind from the Checkpoint 2. Because you only pass through the first stage of the Introductory stage, the Checkpoint 2 is joined outside the door outline of the Introductory stage.

Glitch
There is a weird glitch, which still shows the "Starting from checkpoints require premium version" screen, and even after you rewind, the screen is still there.
 * When starting the game from the start, the screen is STILL THERE, impeding your ability to throw balls in certain places, since the screen is covering an area of the game. Accidental taps will still trigger the program to rewind, making you lose your progress and have to restart. More info below:
 * Rewinding again, once you have started playing the Introductory stage, will send you back to the start, but in an empty room, starting from the door (again).
 * Rewinding during rewinding will change the layout, and slow down the rewind process.
 * If you run Out of Balls, your distance will be zero (0).

Trivia

 * This is the first game by Mediocre where the free version is in the same app as the paid version; all others before this had a "Free" version on the App Store/Google Play Store and had the paid version as a separate app.