Probe, an action platformer by Koubo.
UP allows you to jump.SPACE creates a block under the Probe (as long as you have some in stock). ENTER engages the auto-destruction of the Probe, which is particularly useful if you get stuck because of your own blocks, for example.
Careful: you need to refill the probe's energy in lit areas quite often, otherwise your probe will progressively lose its power, become slower and slower and finally turn off, cutting the signal.
There are 3 checkpoints, the last one gives you infinite lives.