Hi everyone, this is a guide for ancient, infinity, speed and minute tower.
Ancient and Infinity Towers
Recommended team
1. Giratina - lvl 5, moveset - V-Create, Toxic, Fly and a random move (equipped with pecha scarf)
2. Giratina - lvl 5, moveset - V-Create, Fly, Bolt Strike and a random move (equipped with exp. lock)
3. Giratina - lvl 5, moveset - V-Create, Fly and random moves (equipped with exp. lock)
4. Giratina - lvl 5, moveset - V-Create, Fly and random moves (equipped with exp. lock)
5. Giratina - lvl 5, moveset - V-Create, Fly and random moves (equipped with exp. lock)
6. Giratina - lvl 5, moveset - V-Create, Fly and random moves (equipped with exp. lock)

Strategy
1. Keep restarting the battle until you are facing a pokemon that meets any of the following requirements
a) A type weak against fire type moves with hp less then 44 (eg. grass, steel)
b) A type weak against electric type moves with hp less than 32 (eg. water)
2. When you face anyone of those pokemon switch your giratina to the 2nd giratina you have(the one that has bolt strike and v-create)
3. Use Bolt Strike or V-Create twice depending on your opponent pokemon. (Bolt strike does 14-16 hp damage and V-Create does 18-22 hp damage)
4. After you faint the first pokemon make sure that your giratina isn't poisoned, if it is then restart and repeat these steps (this process usually take some time)
5. After you faint the first pokemon, the only moves you should use are Toxic, V-Create and Fly for the remaining battles.
6. Switch to your first giratina and use toxic, then use fly twice(this usually does 17 hp damage). If your opponent uses hyper beam the second time you use fly then use v-create.
7. After that your opponent will be having only 15-17 hp. Switch to another giratina and faint the pokemon.
8. When your giratina with toxic has less than 8 hp, then use a sitrus berry and recover your hp.
9. Don't waste sitrus berries on healing your other giras it is only going to reduce your score.
10. You can use only 10 items in tower so use your berries carefully.

Speed Tower.
Recommended Team
1. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
2. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
3. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
4. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
5. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
6. Aegislash - lvl 2k-3k, moveset - V-Create, Bolt Strike, Focus Blast and Hydro Pump (equipped with exp. lock)
(all of the pokemon should be at the same level)

Strategy
1. Speed is the most important requirement in this tower, you need to be lightning fast and make moves in 1-2 seconds.
2. Type is a factor in this tower and you need to use moves according to the type of the other pokemon. For example if the pokemon is a grass type, use v-create.
3. Keep using effective moves and faint opponent pokemon quickly.
4. When your aegislash's hp is quite low, then switch to another aegislash. (Remember don't waste any time in the process)
5. Try to faint pokemon in 1-3 moves and make your moves quick.
6. It all depends on how fast your net and hands are, so gl.

Snorlax Tower
Recommended Team
1. Giratina - lvl 1-3k, moveset - Focus Blast, V-Create, Fly and a random move (equipped with exp. lock)
2. Giratina - lvl 1-3k, moveset - V-Create, Fly and random moves (equipped with exp. lock)
3. Giratina - lvl 1-3k, moveset - V-Create, Fly, Toxic and a random move (equipped with exp. lock)
4. Giratina - lvl 1-3k, moveset - V-Create, Fly, Toxic and a random move (equipped with exp. lock)
5. Giratina - lvl 1-3k, moveset - V-Create, Fly and random moves (equipped with exp. lock)
6. Giratina - lvl 1-3k, moveset - V-Create, Fly and random moves (equipped with exp. lock)
(all should be at the same level)

Strategy
Note: Just before I start there a few important things to know. The moveset of snorlax can be Hyper Beam, Seed Flare, Surf and Toxic OR Hyper Beam, Seed Flare, Surf and Flamethrower. I prefer the snorlaxes having the moveset with flamethrower since I don't have to waste my pecha berries on healing my pokemon everytime snorlax uses toxic. Okay, now to the plan.
1. Use focus blast twice and faint the first giratina. (While doing that check whether the 2 moves used by snorlax has flamethrower or toxic. If snorlax uses toxic then restart, if it uses flamethrower then continue, otherwise keep following the below steps until it uses flamethrower/toxic and if it uses toxic, restart)
2. Use V-Create 3 times. Keep doing this until 6 snorlaxes have fainted. Make sure that not more than 2 giratinas have fainted on your side
3. After 6 snorlaxes have fainted, switch your giratina to the third giratina and use toxic, then switch to a giratina that doesn't know toxic and use fly and v-create till the snorlax has fainted. Keep repeating this step and try to get the most score. Once all your giratinas that don't know toxic have fainted, do this step with the last 2 remaining snorlaxes.
(You can also try this out with only 1 toxic giratina but when your giratina(toxic) faints, it is endgame for you.)

Minute Tower
Recommended Team
The same team used for snorlax tower.

Strategy
1. This tower is quite similar to speed tower and you have to be very fast because you have to faint as many pokemon as possible in the given 1 minute.
2. Use V-create on the first pokemon (make sure the pokemon faints in 1 move, otherwise restart until you can faint the first pokemon in 1 move.
3. From now on type is not a factor so you have to rush with your moves, make sure that you use only 1 second for every move you use like switching, attacking, etc.
4. Use v-create 3 times and that will ensure that the opponent pokemon faints. Keep repeating this and also when your giratina's hp is below 40%, switch to another giratina.

So that's it, have fun on doing the towers and good luck.
The reason i made this thread is to make sure that everyone has a chance to win the tower.
If you have any doubts please post below.
Credits: Thank you Robath for helping me on the minute tower strategy.

Thankies for the guide ^_^ great job mate!

hm...thanks a lot... :)

bump for the minute and speed tower guide :/