An Aliens Challenge

Description: This is a linear rail shooter where you have to shoot coins to increase your score. Plot: The plot is that a mysterious portal temporarily opened up and gifted you a gun and a note saying to meet at a specific building, and there you find that you need to shoot as many coins as you can to increase your score. Controls: M1 to fire. M2 to speed up the game. M3 to pause the game. Warning, the HTML build has some not intended lighting and mouse sensitivity and the PC is lacking the skip...