Dennis :: Visited collections
| collection | solved levels | % |
| aenigma | 14 | 28 |
| Alberto Garcia 1 | 7 | 4.7 |
| Atlas 01 | 15 | 16.3 |
| Boxxle | 4 | 1.8 |
| Bugs 1005 | 1 | 0.1 |
| Chuchubi | 4 | 0.5 |
| classic | 5 | 12.2 |
| Cosmac | 1 | 0.2 |
| Erim Sever | 1 | 0.4 |
| GRIGoRusha | 1 | 12.5 |
| Sasquatch XII | 1 | 2.1 |
| simple | 6 | 100 |
| Thinking Rabbit | 3 | 6 |
| total | 63 | |
| collection | solved levels | % |
| Camilo | 1 | 100 |
| Dennis | 1 | 100 |
| Sonic | 7 | 3.6 |
| thecat | 1 | 100 |
| Walker | 1 | 100 |
| total | 11 | |