It's cool to see the original inspiration for what would later become the gel segments of Portal 2, had no idea they came from a different game prior to playing this. It's really short, only 25 minutes to fully beat, but pretty good for what it is. The puzzles never get crazy interesting, but they show that this concept had potential, it makes sense why Valve saw interest in this idea. The green jump and the red speed gels work the best, with the blue stick gel being a bit janky, but when has a gravity shift mechanic ever not been, especially for a prototype like this. The aesthetics also serve the game pretty well. They're very simple but they look pleasing for the quality and fit the style of painting colors all over it. Overall, pretty great proof of concept.

Tag is a game primarily focused on weirdo platforming rituals in a greyscale urban area where paints are endowed with certain physical properties like increasing of speed and vertical mobility. On its own this would be a fantastical concept, but its atmosphere is decidedly arid of life and motion, save for trains and spinning billboards.

It should be of no surprise then that you are the person to bring color to this near destitute city, made known by the three basic colors your gun can spray. The game's propensity to leave wide, open areas almost always leads to the player's experimentation and, if inclined, art on the floor or walls as if they were blank canvases designed for Jackson Pollock's bidding. Boring billboards and alleyways become coated in bright green and blue and red, leaving marks from which you can ascend to new heights.

It should also be said that the swiftness which you can play through these levels is incredibly fun, bouncing off walls and shooting yourself off ramps is a treat and blessing here. The sticky paint is similarly exuberant but has an added layer of puzzling nature to it, causing you to pause for a moment and catch your bearings. This type of gameplay is one I find incredibly intriguing, and would probably only be improved if it simmered more. (Though, saying that, I love how small this is.)

ENG: Valve saw that the idea was great, hired them, Portal 2 was born, blah blah blah blah.

It's like Portal 2 but without portals, without plot and with a gel that allows you to stick to any surface. Also the fact of being set in a grayish city is a success for obvious reasons.

ESP: Valve vio que la idea era genial, los contrató, de ahí nace Portal 2, bla bla bla.

Es como Portal 2 pero sin portales, sin trama y con un gel que te permite pegarte a cualquier superficie. También el hecho de estar ambientado en una ciudad grisácea es un acierto por obvias razones.