Step inside
Step into the lobby from Battle Tower Outside and the mood changes from route travel to competition. The receptionist, rule signs, and waiting trainers all make the room feel like a facility, not a dungeon.
What to do here
Read the rules before you enter: bring three different Pokémon, give them different held items, and prepare to fight without Bag items. Talk to the receptionist when you are ready to choose a Battle Room and commit to seven trainers in a row.
Return with a reason
Return whenever the tower challenge is the goal. This lobby is Crystal's cleanest place to test compact teams, held-item planning, and repeat-battle nerve.