Ping (itch) (kwikrick)

PING
by kwikrick
for Trijam#162 (It's all connected)

Use signals (pings)  to open doors and find a way out of the maze.

Pings come in different colors (and sound frequencies). 
The player (white arrow shape) can only send white pings.
Transponders (octagonal shapes) will send other color pings when hit by the player's ping or any other ping.

A door opens when it is hit by pings with the correct sequence of colors (shown on each door).

Transponders and some other objects can be pushed by the player, or by hitting them with pings.

Movement:

WADS/Arrow keys: rotate, accelerate and brake.
SPACE: send signal (ping).

Note:

The game's not quite ready. I didn't have enough time to make any real puzzles. It's more like a tech demo right now...

Credits: 

SFX from freesound.org (TODO)

Music from freemusicarchive.org:

• Output by Metre  (https://freemusicarchive.org/music/Metre/alternator/output)