Gravity Flipper With a Twist

About the game

Gravity Flipper With a Twist is a platformer written by manikanta vasamsetti for Sprig, the open-source game console made by Hack Club that you program in JavaScript. You steer a little robot through rooms with a coin at the end, and your one special power is a button that turns gravity upside down.

The twist is in the platforms. A blue platform is solid only while gravity pulls down, and passable while it pulls up. A red platform is the opposite: solid when gravity points up, and a ghost when it points down. So flipping gravity does not only change where you fall, it also opens and closes parts of the level. Gray spikes kill you on touch, and falling off the bottom or top of the map counts too. Reach the yellow coin to finish the level.

There are fifteen levels. The first ones teach one idea at a time: a short walk, then a wall with a gap that you can only reach by flipping gravity and landing on a blue platform. Later levels combine the colours, add spikes and ask for precise timing in the middle of a fall. Gravity works in real time, one tile about every tenth of a second, so timing matters. The game opens with a four-page how-to-play that explains the platforms and the spikes.

Playing it here

Click Play, press L through the intro pages and the game starts at level 1. On the Sprig's own screen, the top of the map is partly covered by the level and gravity labels, which is how the original looks too. There are short sounds for walking, flipping gravity and finishing a level. The game keeps no save, so closing the page starts you at the first level again.

On a phone or tablet, two groups of buttons appear under the screen, like the eight buttons of the console. On a computer, use the keyboard; the arrow keys work like W, A, S, D.

Controls

Tips

Flip, then move. Flipping gravity takes you across the whole room, so decide where you want to land before you press W.

Check the colours first. Whether a platform is solid depends on the gravity at the moment you touch it, so a blue platform can be a floor now and nothing a second later.

You can move while falling. Pressing A or D in mid-air lets you slip through a gap at exactly the right height.

Watch the edges. The edges of a level are not always walls. Falling into the void ends the try.

FAQ

Is this an official Sprig game? It comes from the public Sprig game gallery, where anyone can send in a game. This one was sent in by its author, manikanta vasamsetti, and it runs here unchanged.

What is a Sprig? A small console with a 160×128 screen and eight buttons, made by Hack Club to teach programming by making games. Its games are plain JavaScript programs, and the engine that runs them is open source.

Does it save my progress? No. The fifteen levels are short.