You don't reach them, after a certain amount of wins the person at the desk askes if you will battle a boss
You can find him when you go to the HQ and beat all of the galactic grunts and once you reach the top you will get to battle the boss.
Cyris is the boss but you battle Satern afterword.
Battle for the Park was created in 1992.
no
Battle for the Park has 164 pages.
Battle of Trent's Reach happened in 1865.
You'll need to get the National Dex and defeat the Pokemon League to reach to it. The boat is in Snowpoint City and the sailor will depart to there. The Battle Park is in the Fight Area towards the northern part of the map, but a card is required, which you will receive upon entrance.
You battle of course.
Palmer is the final boss....... but it depends in where you started at........
If you meant Boss Battles mode, no. If you meant if you can battle any bosses, then yes (there are Master Hand, Crazy hand, and Giga Bowser is half boss, half mini-boss).
at a gate with a crack
You need to finish the adventure mode first. After that go to the main menu , select solo, stadium then you will see boss battle.