  We study compactifications of the $N=2$ 6D tensionless string on various
complex two-folds down to two-dimensions. In the IR limit they become
non-trivial conformal field theories in 2D. Using results of Vafa and Witten on
the partition functions of twisted Super-Yang-Mills theories, we can study the
resulting CFT. We also discuss the contribution of instantons made by wrapping
strings on 2-cycles of the complex two-fold.
