For an innovation-based event in a college, you could consider incorporating puzzle games that not only entertain but also stimulate creative thinking and problem-solving skills. Here are a few ideas for innovation-based mini puzzle games:

1. Brain Teasers: Create a series of brain teasers or riddles that require participants to think outside the box and come up with innovative solutions.

2. Tangram Challenge: Set up a station where participants can engage in tangram puzzles, using geometric shapes to form specific designs or objects. This promotes spatial reasoning and creative problem-solving.

3. Creativity Stations: Have stations with art supplies and materials where participants can engage in activities like creating a structure from marshmallows and toothpicks or designing a new product from provided materials.

4. Escape Room Mini Challenge: Set up a mini "escape room" with puzzles related to innovation and problem-solving. Participants can work in teams to solve the puzzles and "escape."

5. Innovation Trivia: Develop trivia game focusing on innovations and inventors across different fields. This can test participants' knowledge about historical contemporary innovations.

6. Design Thinking Challenge: Pose a challenge that requires participants to apply design thinking principles to solve a particular problem improve an existing product or process.

These mini puzzle games can be designed to encourage collaboration, creativity, and thinking, fitting well with the theme of an innovation-based event in a college.