idea for later on, xmmmx99, you could add a feature(a potential toggleable option) to save the data to your account, not in cookies, because i was playing on a different computer for a time, but couldn't actually play since i didn't have my data(bc it was on another computer). Just a thought. :)
i had 3500 gifts by the time I got the 3 stars every level badge XD lvl 32 there was always 2 or 3 left... had to go back to it after i gave up and did the last few levels
found a glitch, sometimes(and by that i mean roughly 50% of my retry playthrough) im capable of activating portals from faraway distances, and in the first level i did that thinking it would just open the door, since there is no "old" texture for that room, the game glitched and put me in a barren-backgrounded abyss where it is flat and endless with the floor being invisible and sometimes i fell through the "floor" while there, falling into the abyss and then being respawned where i entered. just letting you(the developer) know of this so you could maybe fix it for future players. :)
idea for next update: add some ind of training mode to test out tactics of thing like what you should upgrade first and you can send waves of the little cubes and choose their element and cube type(tank, regular, assassin, etc.) and the quantity, just an idea that you(the developer) could consider. :D