I tackled Cool Spot for the SNES
today, and it's honestly better than most would expect for a licensed title designed to sell 7up.
The graphics are actually quite good. Since the titular Spot is a small character, the world around you is extra big. This is put to best use in the first level, where you're on a beach navigating giant beach chairs, jumping on 7up cans (which, oddly, have their logos facing away from the camera), and observing cassette tapes playing in Walkmans. The levels tend to get less imaginative from that point on, with themes such as "wall" and "toys" that no longer look like real-world areas but rather sprite sets used to create gargantuan mazes to explore. They also re-use some sprite sets, making the game seem a bit repetitive after a while.
Speaking of exploring, you pretty much have no choice. Each level requires you to find at least 60 of the 100 spots scattered all over the place before you can rescue another Cool Spot trapped in a cage at the end of the level. If you want a shot at the bonus stage (which is necessary if you want to collect all the letters to spell "UNCOLA"), you've got to get at least 85 spots (if I remember correctly). This means searching every nook and cranny, as many spots are hidden behind foreground objects or in other out-of-the-way places. Unfortunately, there is also a time limit, adding some (IMO) unnecessary tension to your playthrough. The time limit seems especially unfair considering enemy placement also prevents briskly moving through the levels. Many, many enemies are placed in cheap locations, and often the only way to progress safely is to methodically and slowly explore every area bit by bit, shooting every enemy you see with your bubbles (which can, thankfully, be fired in 8 directions).
Your character jumps super high and his standing jump doesn't cover much horizontal space. There's no "run" button though, as the only way to move faster is to keep walking in one direction until you gain more momentum. This is really aggravating and makes many jumps more difficult than they need to be. It's especially annoying to have to jump from a rope you're clinging to to a platform without hitting your head on the ceiling. But with a bit of practice it becomes manageable.
I decided to give the game an honest effort and even went so far as to collect all the "UNCOLA" letters in the bonus stages (which are also where you hear the best track in the game). Some levels really pushed my patience, such as a train level where you have to jump from tiny airborne UFO to tiny airborne UFO. The UFOs drop you to the ground if you stand on them for more than a fraction of a second, and since they are temporarily off-screen while you are at the apex of your jump AND the background is scrolling by rapidly, it can get extremely disorienting and lead to re-doing large parts of the level over again if you fall. But I was patient, found plenty of 1ups, even got a bunch of continues I didn't end up needing.
Unfortunately, like Demon's Crest before it, Cool Spot had a nasty surprise in store for me. I beat the game in 2 hours with all the bonus letters, only to be told that I needed to beat it in hard mode to get the ending. Ugh. While I don't think I'll be coming back to it, it's definitely worth playing. It seems super-punishing at first since enemies are everywhere and are very easy to get hit by, but once you realize you've gotta move slowly and be patient, it's really not bad.