Best weapon
On level 14, go as far right as possible and find the hidden passage on the wall. Go through and you will find a shotgun.
| <CENTER>Level</CENTER> | Password |
| <CENTER>4</CENTER> | QYZT |
| <CENTER>5</CENTER> | CYZQ |
| <CENTER>8</CENTER> | SBRZ |
| <CENTER>9</CENTER> | QBRX |
| <CENTER>12</CENTER> | RCFL |
| <CENTER>13</CENTER> | PCFD |
| <CENTER>16</CENTER> | MMLW |
| <CENTER>17</CENTER> | ZMLN |
| <CENTER>20</CENTER> | BQBT |
| <CENTER>21</CENTER> | VQBB |
| <CENTER>24</CENTER> | RLNW |
| <CENTER>25</CENTER> | QLNK |
| <CENTER>Bonus</CENTER> | RLNW |
| <CENTER>28</CENTER> | RNKD |
| <CENTER>29</CENTER> | DNKJ |
| <CENTER>32</CENTER> | QDHL |
| <CENTER>33</CENTER> | PDHZ |
| <CENTER>36</CENTER> | MKVD |
| <CENTER>37</CENTER> | BKVR |
| <CENTER>40</CENTER> | MZPL |
| <CENTER>41</CENTER> | BZPM |
| <CENTER>44</CENTER> | BNYZ |
| <CENTER>Bonus</CENTER> | BCDF |