Gaming Tips for Lock's Quest, Stage 97?

[War]

I've been stuck at this stupid impossible stage for over 2 hours... I just want to beat this damn game already and MOVE ON! But I can't beat the level where you have to fight Agony (97) Anyone got any tips? I always get him really close to death, but waves of enemies keep coming and coming and they just tear through my Gungnir walls as if they were wet paper.

 

[iPikachu]

i use that 99999 source cheat

then i spam gungnir towers at each lane and repar bots and att bots and range bots behind them and at the right side i put some ghost sensors cos there are some there then i just go ahead and whack him and run and whack and run and repeat