"Devil Daggers" has an action on release scheme, you play as a floating hand that shoots daggers with two firing modes, a "shotgun" like dagger blast, and a "stream" of individual daggers. The first, which you activate by clicking then quickly releasing, does a lot of damage, but suffers from a cool-down. the latter, which you get by holding for a certain amount of time, is good if you need constant damage.
Interestingly, the game programmed this behavior by moving the position of the hand. When you press LMB, your hand begins traveling forward. If it reaches a certain position, it will start the dagger stream. If you let go before it gets to that spot, it activates the "shotgun" and teleports the hand backward to naturally introduce a cool-down, returning to the neutral position after some time.
People figured out that, because holding the mouse down moves the hand forward, if you shotgun then re-hold the mouse button, your shotgun cool-down is much lower. Most runs will do this because it allows you to do the most damage in the quickest time, but initially learning it is really strange because you don't expect the action to be on release.