Aliens from Outer Game

Game Description:
Yes,the rumours are true:Aliens have been spotted,attacking the Earth,Only you can save mankind,so we turn to you,Commander,you must take control of the Experimental Secret Alen Defence Vehicle and blast them from the skies!Our best scientists will be supporting you all the way,Use your mouse to move your vehicle,and click to fire,M to mute sounds,P to pause.After each wave of aliens,our scientists will repair your craft and they will also be able to fit new technology salvaged from the debris,Laser Power:improves the damage done by tou lasers,Fire Rate:increases your rate fo fire,Add Side Lasers:adds an auxillary pair of lasers,which each do half the damage of your main laser,Armour:increases the amount of damage you can take,Shield:an energy shield will reduce the amount of damage taken,but needs time to recharge.Your score points,and salvage points,for each alien destroyed,However,every time they descend further,You score less points per alien,For each points you also get one salvage point which can be spent on upgrades,Each alien destroyed will increase the speed of the remaining aliens for that wave,There are 15 waves in total,which get progressively harder but are worth more points.