Crystal Towers offers 25 levels spanned across 4 separate routes through the game, which means the replay value is much higher than a typical platformer. The gameplay is similar to Super Mario: basically you jump on enemies and avoid collision with them. The game took its author close to a year to finish, and it shows: everything from the cartoony backgrounds, diverse enemy types, and interesting levels. Although the slightly-3D-looking Bernard looks a bit incongruent with flat 2D backgrounds, this is only a minor annoyance in an otherwise fun game. If you are one of those expert gamers who like beating your own high scores, Crystal Towers will delight with many ways to score, including the cool "enemy kill combos" feature: if you jump on a group of enemies without touching the ground afterwards, you can get very high scores - up to 5,000 points in some cases. All in all, Crystal Towers is definitely the author's labor of love, and a wonderful tribute to the golden age of Apogee games. Recommended.