Thank you for all your compliments, we tried to pay attention to all the little details that could make a more unique game <3
As for the theme, we apologise for not expressing it a bit better. From our side we thought of doing a literal interpretation of it, as we represented the accelerator as a loop that had to be broken to release the particle. We made a mistake when we described it as a "slingshot" and not a "sling (weapon)" as English is not our first language, and that may have made our explanation not very clear.
We hope we could express it a bit better whit this message!